Portable sobriety tester



FIG. 1 is a front elevational view of the portable sobriety tester of the present invention;

FIG. 2 is a rear elevational view of the portable sobriety tester of FIG. 1;

FIG. 3 is a left side elevational view of the portable sobriety tester of FIG. 1, the right view being a mirror image thereof;

FIG. 4 is a top plan view of the portable sobriety tester of FIG. 1; and,

FIG. 5 is a bottom plan view of the portable sobriety tester of FIG. 1. 

The ornamental design for a portable sobriety tester, as shown and described. 